Huifang Ma Zhixin Li Zhongzhi Shi Combining the Missing Link: An Incremental Topic Model of Document Content and Hyperlink. 259-270 2010 Intelligent Information Processing http://dx.doi.org/10.1007/978-3-642-16327-2_32 conf/ifip12/2010iip db/conf/ifip12/iip2010.html#MaLS10